The slope if the line is 7/3
Answer:
x = 45
Step-by-step explanation:
The angles are supplementary
(2x + 40) + (3x - 85) = 180
Combine like terms
5x - 45 = 180
Add 45 to both sides
5x = 225
Divide both sides by 5
x = 45
You have 180 degrees in a triangle so 180-40-51=89
Y = 8x + 40.
Y = score, and x = hours of homework.
Substitute 3 into x
8 x 3 = 24
24 + 40 = 64
So the model predicts a score of 64 for 3 hours of homework.
Hope this helps.